Corrugated metallic-plate structure



Sept. 24, 1929.

G. G. GILPIN CORRUGATED METALLIC PLATE STRUCTURE Filed Feb. 9, 1928 Inventor.-

Gmh 4. 97 m Attorney Patented Sept. 24, 1929 UNITED STATES PATENT OFFICE GARTH G. GILIPIN, OF RIVERSIDE, ILLINOIS, ASSIGNOR TO UNION METAL PRODUCTS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAVARE CORRUGATED METALLIC-PLATE STRUCTURE Application filed February 9, 1928. Serial No. 253,182.

My invention relates to the construction of railway cars, and more particularly to wall structures made of one or more metallic plates or panels formed with integral reinforcing,

stiffening and bracing embossments or corrugations. Car wall structures frequently require small doors therein for loading lumber, rails or other similar long material or for the installation of ventilators when the car is used to convey perishable lading, such as fruits, etc. Railway stock cars require openings therein for loading sheep, hogs, or other small animals. )Vhen the wall or other car structure is made of a corrugated metallic plate it is desirable to form the corrugated or embossed metallic plate so that the cutting of the door opening therein will not reduce the strength of the corrugations, or at least, will reduce their strength a very small amount.

The object of my invention is-to provide a door opening in a corrugated or embossed metallic plate and to so form the corrugations or embossments that their strength will not 7 be materially reduced.

Another object is to provide a door openin g in a corrugated or embossedmetallic plate and form the corrugations or embossments so as to be relatively rigid adjacent the door opening and relatively resilient adjacent the frame members of the car to which the metallic plate is secured.

Another object of the invention is to provide a panel for a door openingin a. metallic plate, which plate is provided with a plurality of corrugations, some of which merge into the panel and others of which extend continu ously across the plate to opposite sides thereof.

In the drawings:

Fig. 1 is a typical application of my structure as used for an end wall of a railway box car.

Fig. 2 is a section on line 22 of Fig. 1.

Fig. 3 is a detail of a typical metallic plate.

Fig. 4: is an end view of Fig. 3.

Figs. 5 to 9 inclusive are sections on lines 55 to 99 respectively of Fig. 3.

Fig. 10 is a fragmentary section showing the application of a typical door frame.

In the drawings the usual parts of the car are shown, such as end sill 1; end plate 2; corner post 3 upper corrugated metallic plate 4 and lower corrugated metallic plate 5.

The metallic plate is formed with a panel 7 ralsed from the original plane 8 of the plate which is provided with an aperture 9 forming a door opening and a flat margin 10 surrounding the door opening for attachment of the door frame 11. Any desirable door frame (such as shown in Fig. 10) or door maybe used with my construction. The drawings, however, show a slidable door 12 mounted in a four sided cast metal door frame. The door frame is preferably of such form and construction and is secured to the metallic plate so as to transmit any horizontal loads imposed thereon to the oppositely disposed embossments; or in other words, to make the aligned embossments (such as 13 and 13) in effect, a continuous beam from one edge to the opposite edge thereof.

The plate is formed with a plurality of embossments 20 which spring from opposite sldes of the panel 7 and which preferably increase in width and decrease in depthand termlnate into the plate adjacent the opposite edges of the plate or adjacent the frame members of the car (corner post 33, for instance) to which the plate is secured. Terminations 21 may be provided if desired. These embossments are preferably split (22) or divided to form a greater number of embossments 23 before terminating or merging into the plate. The divided portions 23 of the embossments are preferably spaced apart distances equal to their width, and furthermore, the adjacent portions of adjacent corrugations are also spaced apart distances equal to their width and the embossments as well as the portion of the plate 24: between adjacent embossments are formed with a curved contour so as to form a sinuous and resilient structure. (See Fig. 9.) The portion of the plate adjacent the raised panel (see Fig. 8) is formed with embossments 20 preferably spaced apart distances equal to their width and the embossments preferably have arcuate (with large radii) tops 27 and the portions of the plate 28 betweenthe embossments are also preferably arcuately formed (with large radii) and are 100 preferably deeper (28) than the ends of the divided portions (29) whereby a structure is provided which is relatively stronger and relatively more rigid than the section of the plate (Fig. 9) through the ends of the divided portions 23 of the embossments.

The plate is also preferably formed with a corrugation or embossment 3031 on one or both sides of the panel which corrugation or embossment is divided at its opposite ends to form greater number of corrugations or embossments before terminating into the plate. These corrugations or embossments preferably terminate in alignment with the terminations of the divided portions of the other corrugations or embossments and may be spaced therefrom a distance equal to their width so as to co-operatewith the corrugations or embossments (2023) to form a sinuous resilient structure (see Fig. 9) and, furthermore, the middle of these corrugations or. embossments correspond in contour to the corrugations or embossments adjacent the panel to co-operate to form a contiguous and sinuous configuration.

Corrugated metallic plates, such as shown in the drawings, are formed between dies mounted in the platens of a reciprocating press and it has been found that in forming such a fiat panel, as herein shown and described, the metal wrinkles and is deformed so when a part of the panel is cutout to make the door opening that the metal so cut out cannot be used for other purposes without being straightened. I overcome this objection by forming a continuous web 33 around the portion of the plate to be out out for the aperture which eliminates the wrinkling and bending so that after the plate is pressed the portion of the plate cut out for the aperture is not scrapped,.but in fact, is used to form the door (12) for the individual plate. A flat portion 3a is left between the continuous web 33 and the edge of the door opening for attachment of a door frame.

The accompanying drawings illustrate the ireferred form of the invention, though it is to be understood that the invention is not limited to the exact details of construction shown and described, as it is obvious that various modifications thereof within the scope of the claims will occur to persons skilled in the art.

I claim:

1. In a railway car structure, a metallic plate formed with a raised panel provided with a door opening, said plate also formed with a plurality of embossments springing from the opposite sides of the panel and terminating into the plate adjacent the opposite edges thereof.

2. In a railway car structure, a metallic plate formed with a raised panel provided with a door opening, said plate also formed with a plurality of embossments springing from the opposite sides of the panel which are divided to form a plurality of greater number of embossments before terminating into the plate adjacent the opposite edges thereof.

3. In a railway car structure, a metallic plate formed with a raised panel provided with a door opening, said plate also formed with a plurality of embossments springing from the opposite sides of the panel terminating into the plate adjacent the opposite edges thereof, and a corrugation formed in the plate on each side of the panel terminating into the plate adjacent the opposite edges thereof.

4. In a railway car structure, a metallic plate formed with a raised panel provided with a door opening, said plate also formed with a plurality of embossments springing from the opposite sides of the panel which are divided to form a plurality of greater number of embossments before terminating into the plate adjacent the opposite edges thereof, and a corrugation formed in the plate on each side of the panel which are divided to form a greater number of corrugations before terminating into the plate adjacent the opposite edges thereof.

5. In a railway car structure, a metallic plate formed with a raised panel provided with a door opening and a fiat margin around said opening for attachment of a door frame,

said plate also formed with a plurality of embossments springing from the opposite sides of the panel and terminating into the plate adjacent the opposite edges thereof.

6. In a railway car structure, a metallic plate formed with a raised panel provided with a door opening and a flat margin around said opening for attachment of a door frame, said plate also formed with a plurality of embossments springing from the opposite sides of the panel which are divided to form a plurality of greater number of embossments before terminating into the plate adjacent the opposite edges thereof.

7. In a railway car structure, a metallic plate formed with a raised panel provided with a door opening, said plate also formed with a plurality of embossments springing from the opposite sides of the panel which increase in width and decrease in depth before terminating into the plate adjacent the opposite edges thereof.

8. In a railway car structure, a metallic plate formed with a raised panel provided with a door opening, said plate also formed with a plurality of embossments springing from the opposite sides of the panel which increase in width and decrease in depth before terminating into the plate adjacent the opposite edges thereof, the divided ends of adja cent embossments merging together to form a sinuous resilient structure.

9. In a railway car structure, a metallic plate formed with a raised panel provided with a door opening having a depression therein forming a continuous web around said opening, said plate also formed with a plurality of embossments springing from the p posite sides of the panel and terminating into the plate adjacent the opposite edges thereof. 10. In a railway car structure, a metallic plate formed with a raised panel provided with a drop opening, said plate also formed with a plurality of embossments springing from the opposite sides of the panel which are divided to form a plurality of greater nu1nber of embossments before terminating into the plate adjacent the opposite edges thereof, and a corrugation formed in the plate on each side of the panel which are divided to form a greater number of corrugations before terminating into the plate adjacent the opposite edges thereof in alignment with said emboss- 0 ments, the divided ends of adjacent embossments and the divided ends of the corrugations merging together to form a sinuous resilient structure.

11. In a railway car structure, a metallic plate formed with a raised panel provided with a door opening and a margin around said opening for attachment of a door frame, said margin offset to form a continuous web around the opening, said plate also formed with a'plurality of embossments springing from the opposite sides of the panel and terminating into the plate adjacent the opposite edges thereof.

GARTH G. GILPIN. 

